EBV viral load during the study according to lymphoma subtype. EBV viral load in patients with (A) DLBCL, (B) HL, (C) ENKTL, and (D) PTCL. C, cycle; cHL, classical Hodgkin lymphoma; CR, complete response; D, day; DLBCL, diffuse large B-cell lymphoma; EBV, Epstein-Barr virus; ENKTL, extranodal natural killer/T-cell lymphoma; PD, progressive disease; PR, partial response; PTCL, peripheral T-cell lymphoma; SD, stable disease.